68802156 has 48 divisors (see below), whose sum is σ = 178829280. Its totient is φ = 22875840.

The previous prime is 68802143. The next prime is 68802161. The reversal of 68802156 is 65120886.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 68802156.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72646 + ... + 73586.

It is an arithmetic number, because the mean of its divisors is an integer number (3725610).

Almost surely, 2^68802156 is an apocalyptic number.

It is an amenable number.

68802156 is an abundant number, since it is smaller than the sum of its proper divisors (110027124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68802156 is a wasteful number, since it uses less digits than its factorization.

68802156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1631 (or 1623 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 68802156 is about 8294.7065047535. The cubic root of 68802156 is about 409.7642031031.

The spelling of 68802156 in words is "sixty-eight million, eight hundred two thousand, one hundred fifty-six".